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ISAAC P. WENDELL, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO CHARLES P.TASKER, OF SAME PLACE.

COMPOSITION OF MATTER FOR THE MANUFACTURE OF AXLE-BEARINGS, &c.

SPECIFICATION forming part of Letters Patent No. 325,886, datedSeptember 8, 1885.

Application filed February 14, 1885. (No specimens.)

To all whom it may concern:

Be it known that I, ISAAC P. WENDELL, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and 5 State ofPennsylvania, have invented a new and useful Composition of Matter, ofwhich the following is a specification.

The object of my invention is to providean inexpensive material havingtheproper hardro ness and durability for the manufacture of axle orjournal bearings, packings for pistons, and like articles.

My invention consists in a compound composed of talc or; sea stone,lumba o, lithar e,

r 5 and silica'tTa'of soda. The tale or soapsionef' litharge, andplumbago, in a powdered'condi tion, are well mixed with liquid silicateof soda, molded in the desired form, and dried n Gonna-Luv b artifieiawrnatural heat. 20 TH ZIZ Z one-half pound of lithar e one-quarter poundof plumbago, and one'iio find and a half of li uld smears of soda, orthe correspond- '1ng amount of 0% alhzed silicate of soda, or thecorresponding amount of other equivalent nluratingmete iel-Theseproportionshowever, may be varied, and oxides or combinations oflead other than lit-harge and forms of carbon other than plumbago may beemployed,without departing from my invention.

Having thus described my invention, I claim- A composition of matterconsisting of talc or soapstone, litharge, plumbago, and silicate ofsoda, substantially as set forth.

In testimony whereof I have hereunto signed my name this 3d day ofFebruary, A. D. 1885.

ISAAC P. WENDELL.

In presence of WM. 0. STRAWBRIDGE, J. BONSALL TAYLOR.

Examiner

